<!DOCTYPE html>
<html>
  <head>
    <title>CSS Test Reference</title>
    <style>
      div {
        margin: 2px;
        width: 200px;
        height: 200px;
        background: color(srgb 0.005 1.0 0.0 / 0.5);
      }
    </style>
  </head>
  <p>There should be nearly no red in this box (it should be a translucent green).</p>
  <div></div>
</html>
